Concrete-mold.



D. E. TINGLEY.

CONCRETE MOLD.

APPLIOATION FILED MAR. 3o, 1909.

Patented Aug. 1'?, 1909.

2 SHEETS-SHEET 1` MM Y D. E. TINGLEY.

CONCRETE MOLD.

APPLICATION FILED MAB. so, 1909.

93 1 ,35 1 Patented Aug. 17, 1909.

2 SHEETS-'SHEET 2.

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i UNITEDsTATE s PATENT f Divin TINGLEY, or. MARSHALL. IL'LINIS.-

Specication of Letters Patenti concentre-MOLD.

Bea known that-1, ,DAVID Tamm a arches, conduits, Ysewers and other structures By my invention! the built in collapsible sections,

more recentlyfdeposited 'concrete and placed in position for continuing the'work, wl'1`-erebyy` the Worlrl 'may be continuously ,earrifdfor- Ward and :does not. have tobe done in .sec-

fr E -.tions, 'each`.se'ction of whichhas tobe' v can befremov'ed foruse in building the nekt supportingnsection; v'Thev interiorA vof the- `for1ns are unobstructed, Vwheny 1n position,v

A and.l after' the 'concrete' has been placed around thel same, so that:Workmen"v experi? jence 11o diliculty in bringing the forms forward fromvthework; i

rearV tothe front end of7 the invention` 'consists' in certain constructions,

. combinations and arrangements of parts the scribed infconnectionV with the accompany -ing drawings, and then the inventiol'ijpafr-v l Referring to the drawings wherein the same part is ydesignated by the same refert'icularly pointed out in the appendedl claims.

ence numeral Wherever itv occurs, Figure l is a crossvsectionof a sewer pipefin process o'f constructionv and 1n which' A my improved molds are employed; Fig. 2 is' a section of L the mold taken' Online 2, 2 of Fig; 1 and l 'looking inthe direction, of the arrows; Fig.

3ds a vlongitudinal section of a conbrete sewer"v in process` of construction andshowing my molds 'in position therein; Fig. lis anend viewlof a modification showing my inverti- ,Figbf 2. 'Slidably mounted' between then.

tionas ladaptedfora-mh work; Fig.` 5 isla detail sectional Viewi showing' thef'securing i means for the overlapping sections; and Fig. y

is a sectional View my preferred .forms or 'molds are." 'anufeelengths of molds at lthe 'rear or.l irst'completedp r vtien ofthe Work maybe collapsed when the' ;...-lconcrete is sulii'ciently set! and. carried c`}r-'4 l, ward or. ahead through sections supporting y members may be `chan mitterl to thoroughly set before the forms' The side'members Sand 10 are kpreferably 'th .these and 'other.objects4 in' vievv my seotionso'f'the mold together.

employ` a plurality of section sfwhich are y 'patented Aug. 17', 1969.

'forni off-.device for locking theoverlapping From the drawings it .wil l fb e seen that I' i ladapted to be' p lacedend to'end;to,forn1tl1e' I continuous cons ctriustion,l *LThe length of these F sections depends uponthecharacter of work' tolse done, as where the masonry tube or .the

likestraight longer sections may befusedthan where it? is "necessary to forni curves.` Each' of these` 1 nold. sectionsis-formed 'of a p uralityof members' .7', 8,9, 10, hi'ng'ed to- Y struction showninFig. l, it is to beunder my invention illustrated, I 4Will ldesignate the las the-bottnfmembe yand fthe' members `8 and 10-as the vs ide 1nen`1bers ,ftliougli .it is obi istoodftha't this number may be increased or diminished, as 'may be found desirable. .For conveniencein describingtheform ofA member 7- as thetop member, the member 9;

vioujs that A` the relative 'positionse'ofthese ged as desired. l

formed with a-fplurality of curved vTb'ars 14,

to the .heads o V'which .are rivetedlplates '15,

thus forming afrigid shell.4 The- T-bars are j formed 'in- `anI arc oit'A a lcircle- Whose .center is fthe longitudinal axis of theiset-up mold Sec` tions, `and consequently'the plates `15 ,are

similarly curved..v

covered by plates; In the 'cen- I preferably cut through the T`bar'sto form mounted the journals of therolls 17,

and to the inner ends ofthese irons 18 are secured the endsiof a pair of- L irons'l) The-,bottomsection 9 `is 'similarlyfformedl of T bars tral portie of the bottom section 9 however a channel in which may be removably placed the Usliaped section 16 having open slots injtsupper'edges .in Whichare removably 95 "ico by means of rivets 20,'.orfo`ther 4asteiiing 'f devices.v The plates 15 [are secured 'to these :117214,10 increase thespace between the parallel sides of the irons, as most clearly seen in widened portionsof the L irons- 19 is a. bar 22 provided' with notches. 23 on its `under setsofironsQ Preferably,"and as shown, the pair. of L-irons 19,-` beyond the end ofthe' T` 'iirons'l are'sligh'tly broadened out, as shown face, this. bar`V being arcshapfedf/thel same .as

sof

.shaped end 24, `and a shoulder 25 which is 'adapted to engage under a keeper 26 formed at the edge of the section 10 in line with4 the end of the T. irons 14 of this section. l t 27 is a latch pivotally mounted upon a pin 28 extending between the sides ofpthe L irons 19, the latch being provided with a tooth 29 adapted to engage in the notches 23 o f the bar 22 upon the tooth 29. 'I he latch is provided with a nose,3 0 over which a bail 31, mounted in the sides of the yL irons 19, is adapted to engage, whereby the latch may be held with its tooth in engagement with a notch 23 of the bar, and prevent its endwise movement. As an additional means of reventing movement of .the bar 22 I pre erably form its inner end concaved, as shown at 32, and 33 is a pin adaptedy to be passed through openings 34 in the L` irons and .be engaged by the notch 32 in the end' of the bar, whereby back movement of thel bar is absolutely prevented.' As shown in Fig. 2, the pin is secured to one of the L irons 19 by means of a chai-n 35, and 36 is a cotter in which may be passed throu h the end ofp the pin to prevent it from alling ont of the opening 34 in which it is placed. Asa means for movingthe bar 22 to lock the mold in its expanded position I have shown in Fig` f a device lwhich consists of a head 37 hav? g a handle 38 at one end of the head and a paw 39 at the other end thereof. 40 is a pm extending through the head and on which the pawl 39 is pivoted. This pin also carries at one end a finger 41 which extends outwardly from one side of the head and 42 is a second finger on the other side thereof, saidA finger 42 being pivoted at 43 tothe head and adapted to be,swung toward and away from the same whereby the lingers 41 and 42 may be caused to engage and disengage with the openings 34 in the L irons.

When the finger 42 is moved up into full line position-shown in Fig. 6, the opening 44 shown in dotted lines in Fig. 6 is adapted to pass around the end of the pin 40, in order to strengthen the finger and hold the same rigid; It will be seen that with'. this con-- stialction the fingers 4l and 42 may be caused to engage o enings 34 and then by causing the end of t ie pawl 39 to engave onev of the notches 23 the bar 22 may be forced longitudinally between the L bars 19 and the nose 24 of the bar be forced into'locking position under the keeper 26.

It will be noted that the plate 15 of the section 7, when the arts are in locked position, laps over the p ate 15 of the section 10, so as to rvent concrete from working through tiie joint. Preferably, and as shown, I also rovide strips 45 which overlap the joints etween the other members of the mold section.

VAs the greatest strain on the mold section A senesi occurs when the 'concrete is being placed in position around the section I preferably provide turn buckles 46 having hooked ends 47 adapted to engage openings formed in -the'T lrons of the various sections, whereby whlle the concrete is being placed in position around the section it will be interiorly braced. As soon las all the concrete is in place the turn buckles may be removed. l

in the front .edge of the lower portion 9 into which a crowlbar may be inserted in order, after the mold 'is collapsed, to loosen the s'mlpt from the concrete to which it may the. same as the constructionl heretofore described exceptthat the bottom member 48 is 5Q`are employed, the three members being hinged together at 51 and the two side ineinbers being secured together by the latching means heretofore described. With this construction I preferably provide two sets of rolls,1 7 instead of 'one as inthe form of con. struction previously described,

As best shownl in Fig. 3, I provide at one 'end of each mold section, fianges 52 secured to the' front end of each member of the mold section, said flanges being inwardly curved, as shown, in order to assist in placing the various sections end to end.

When each section is set up or expanded for use, as illustrated,`it forms a strong rigid mold section, and by placing a sufficient number of these sections end to end and covering each section with concrete successively such a length of pipe may be laid that the concrete of5 the first section'scovered will be drywhen the concrete of the sections last covered is being placed in position. As the turn buckles to brace the mold sections are preferably removed as fastas the concrete has been placed around theinold, .a workman may enter the sections and Vpass along the same until he. reaches the first section covered by concrete, whereupon he removes the safety pin 33 from behind thebar 22, and

from engagement with tlie notch of the bar, when he can move back the bar out of engagement with the keeper 26, and then fold the members of the mold section around each other, as shown in Fig. 1. the members in this position he may connectshown in Fig. 1. He then raises the bottom member of the section from its position and if it sticks to the concrete can force it up by placing a crow bar in the ring 47. The section is new. lifted up until its bottom mem- -ber 9 rests upon the rolls 17 of the adjacent "section, when it can be readily pushed 57 are rings which I preferably provide In order to hold two of' them together by a stay rod 53 as- In Fig. 4 I have shown a construction f adapted for buildmg concrete arches, culverts and the llke, and in its essentials if is madeflat and only two side members 49 and tlr'en withdraws the tooth ofthe latch '27 thro1igh:\tl1e series of `mold" sections to the front end of the Work'and placed in position, expanded and locked up, the turn buckles. placed in'pos'ition and the concrete tamped thereon. Thisoperation is repeated taking the mold section at the back of the Work from position, moving it through the sections to the front of the Work and again placiug'it in position, From this it will be seen that lthe operatiph o making pipes, conduits, arches and the" like4 anbe carried on continuously and no dela #caused by having .Iclaim as `new andv desire to secure by Let- 4 ters Patent is l. A mold comprising a plurality of members shaped to conform to the conduit or other construction to be molded thereover,

lsaid members being hinged together whereby they may-be collapsed to pass-through an adjacent expanded mold, -latching means carried by one section, cooperating lmeans carried: by another member With which said i, latching means is adapted to engage to hold the mold` in expanded condition, a U

shaped section mounted on the interior of the lower lmember of each mold section, and

rollers, journaled in said U shaped sec tion,' to support a collapsed mold section While bein passed therethrough. v

2. A .mo d comprising a plurality of mem-l bers shaped to conform/to the conduitv or other construction to be molded th`ereove1,

said members being hinged together, a

notched bar slidably mounted on onel of said members, a keeper mounted on the /edgeof another memberv adapted to receive the end of t-he bar for locking said parts together, a

latch pivoted over the sliding bar and pro-v vided With a tooth adapted Ato engagea notch in the bar, andmeans for locking the -V latch "its tooth in engagement with a notch. f

3. A mold comprising a plurality of memvbers shaped to conform to the conduit or 'other construction to be molded thereover,

said members being hinged together,l a notched bar slidably mounted on one of said members, a keeper mounted on the edge of .another member adapted to receive the end of the bar for locking said parts together, a. latch pivoted over the sliding bar and provided with a tooth adapted to engage a notch in the bar, and a rin surrounding the bar and adapted to lock t e latch with its tooth in engagement with a notch.

In testimony whereof I aiix my signature in presence of two witnesses.

DAVID E. TINGLEY. Witnesses F. L.v BRowNE, E. T. WHITE. 

